@incollection {engelmann1999a, title = {Particle-tracking velocimetry}, volume = {3: Systems and Applications}, year = {1999}, pages = {663-697}, publisher = {Academic Press}, chapter = {31}, author = {D. Engelmann and M. St{\"o}hr and Christoph S. Garbe and Frank Hering and Bernd J{\"a}hne and Horst Hau{\ss}ecker and Peter Gei{\ss}ler} }